Global Journal of Technology and Optimization

ISSN: 2229-8711

Open Access

Articles in press and Articles in process

    Editorial Note Pages: 1 - 1

    Editorial Note for Global Journal of Technology and Optimization

    Jason Arnold

     I am pleased to mention that during the year 2019, all issues of volume 10 were published online well within the time and the print issues were also brought out and dispatched within 30 days of publishing the issue online.

      Research Article Pages: 1 - 5

      Mitigation of Voltage Fluctuations/Voltage Flicker and Power Quality Improvement in Power Systems Using Distributed Satcom

      Abubakar Sufyanu

      This paper deals with power quality and more specifically, voltage flicker in power systems. Voltage flicker is one of the disturbances in power systems. This flicker mainly occurs due to nonlinear loads. The magnitude of the voltage flicker solely depends on the type of electrical load that is producing the disturbance. Voltage flicker can also occur due to voltage sag and/or voltage swell in the system. This voltage sag can generate inrush current and this current passes into the sensitive loads in the distribution system.

        Editorial Pages: 1 - 2

        3D Printing Technology and Innovations

        Natalia Williams

        3D Printing also known as Additive manufacturing. It turns digital 3D models into solid objects by building them up in layers. The technology was first invented in the 1980s, and since that time has been used for Rapid Prototyping (RP). However, in the last few years, 3D printing has additionally started to evolve into a next-generation manufacturing technology that has the potential to allow the local, on-demand production of final products or parts thereof. This technology is used in the fields of jewellery, footwear, industrial design, Architecture, Engineering and Construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, and many others

        Editorial Pages: 1 - 2

        3D Printing and Additive Manufacturing

        Natalia Williams

        Printing technology has been evolved as an interim field science and has witnessed an enormous market potential in establishing a replacement business module within the field of construction, designing, automobile engineering, architecture, and more. With the arrival of the latest technologies being integrated with huge production demands the research and development is critical and to suggest the research process involved in 3D Printing and Technology. “2nd International Conference on 3D Printing and Additive Manufacturing” during March 25-26, 2022 in Berlin in Germany, which incorporates prompt keynote presentations, Oral talks, Poster presentations, and Exhibitions.

          Research Article Pages: 1 - 7

          Usage of Compressed Natural Gas-Diesel Dual-Fuel Engines for Optimization of Fuel Consumption

          Jean Pierre Atanas*

          Transportation is one of the sectors that contribute to Greenhouse Gases (GHGs) emissions. In recent years, many efforts have been made to reduce Carbon Footprint (CF), particulate emissions, and cost of operation. Dual fuel technology has proven to be a viable technology since Compressed Natural Gas (CNG) becomes largely available. Nowadays, CNG is the best fuel alternative for the automotive industry, specifically for marine engines, heavy machinery, trucks, and buses for public transportation. This paper describes a novel approach to fuel consumption reduction and the optimization of the cost of operation after dual-fuel CNG-Diesel conversion for a fleet of 39 buses. A reduction in carbon Dioxide (CO2 ), emissions are reported with a reduction in smoke emission and Particulate Matter (PM) by equipping buses with an active PDF catalyst system whereby oxides of nitrogen (NOx), Hydrocarbons (HC), and Carbon monooxide (CO) emissions were 10% lower than the limits set by Japan’s current emission standard (JP05). Results were focused on the mixed fuel economy optimization using the best configuration of the CNG ratio map to be loaded in the Electronic Control Unit. Moreover, the range of the buses was increased, hence reducing stall time at pump stations. Finally, the study shows the financial advantages of diesel-engine conversion to the CNG-Diesel dual-fuel engine.

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